'On that path they say that there is white, or blue, or yellow, or green, or red; that path was found by Brahman, and on it goes whoever knows Brahman, and who has done good, and obtained splendour.

In plain words: People describe this path in different colors, like white, blue, yellow, green or red. Brahman opened this path, and those who know Brahman, live good lives and shine inwardly walk on it.